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GE28F320C3TC70 Datasheet(HTML) 59 Page - Intel Corporation

Part No. GE28F320C3TC70
Description  Advanced Boot Block Flash Memory (C3)
Download  68 Pages
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Maker  INTEL [Intel Corporation]
Homepage  http://www.intel.com
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GE28F320C3TC70 Datasheet(HTML) 59 Page - Intel Corporation

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Intel£ Advanced+ Boot Block Flash Memory (C3)
Datasheet
59
C.2
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or “database.” The structure sub-sections and address locations are summarized
below.
C.3
Block Status Register
The Block Status Register indicates whether an erase operation completed successfully or whether
a given block is locked or can be accessed for flash program/erase operations.
Block Erase Status (BSR[1]) allows system software to determine the success of the last block
erase operation. BSR[1] can be used just after power-up to verify that the VCC supply was not
accidentally removed during an erase operation.
0x00014
P_IDHI
ID #
0x00015
PLO
PrVendor
0x00016
PHI
TblAdr
0x00017
A_IDLO
AltVendor
0x00018
A_IDHI
ID #
...
...
...
Table 25. Example of Query Structure Output of x16 Devices (Sheet 2 of 2)
Table 26. Query Structure
Offset
Sub-Section Name
Description1
0x00000
Manufacturer Code
0x00001
Device Code
0x(BA+2)2
Block Status register
Block-specific information
0x00004-0xF
Reserved
Reserved for vendor-specific information
0x00010
CFI query identification
string
Command set ID and vendor data offset
0x0001B
System interface
information
Device timing & voltage information
0x00027
Device geometry definition
Flash device layout
P3
Primary Intel-specific
Extended Query Table
Vendor-defined additional information specific to the Primary
Vendor Algorithm
NOTES:
1. Refer to the Query Structure Output section and offset 0x28 for the detailed definition of offset address as a
function of device bus width and mode.
2. BA = Block Address beginning location (i.e., 0x08000 is block 1’s beginning location when the block size is
32K-word).
3. Offset 15 defines “P” which points to the Primary Intel-specific Extended Query Table.


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